Randomized controlled trial of 5 sessions per week and 2 sessions per week therapies of Adacolum

INTERVENTION: Patients in five sessions receive five Adacolumn sessions in first week, and two Adacolumn sessions in second and third weeks. Patients in two sessions receive two Adacolumn sessions each in three weeks. CONDITION: Ulcerative colitis PRIMARY OUTCOME: The primary measure of response was clinical remission after one week by the evaluation of the CAI score SECONDARY OUTCOME: clinical remission at week 3; clinical response at week 1 and 3 ; safety INCLUSION CRITERIA: Patients who needs Adacolumn treatment and whose CAI score is over 6 degrees.